Rig-flange.



'PATENTED FEB. 21, 1905.

S. F. FIELD; RIG FLANGE. APPLICATION nun JUNE 22,1904.

Invetor UNITED STATES Patented February 21, 190 5.

PATENT OEEIcE.

SAMUEL F. FIELD, OF FINDLAY, OHIO, vASSIGrNOR TO THE FINDLAY FOUNDRY & MACHINE COMPANY. OF FINDLAY, OHIO.

RIG-FLANGE.

SPECIFICATION forming part of Letters Patent No. 783,372, dated February 21, 1905.

Application filed Tune 22, 1904. Serial No. 213,727.

To all whom, it may concern:

Be it known that I, SAMUEL F. FIELD, a citizen of the United States, residing at Findlay, in the county of Hancock and State of Ohio, have inventeda new and useful Rig-Flange, of which the following is a specification.

This invention relates to devices which are commonly known as rig-flanges and which consist of iron flanges, whereby belt-wheels may be mounted upon the shafts of machinery of various kinds, but especially oil-drilling machinery or rigs.

The object of the present invention is to provide a rig-flange for securing band-wheels, which, as is well known, are usually made of Wood, in position upon their shafts in such a manner as to enable them to be conveniently adjusted or removed as may be required and in such a manner that the wheels when adjusted shall run perfectly true.

An object of the invention is also to secure the wheel upon the shaft by means of a single key instead of two, as have been commonly employed.

Further objects of the invention are to provide a device of the class referred to which shall possess superior advantages in point of simplicity, durability, and general efliciency.

With these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claim.

In the accompanying drawings has been illustrated a simple and preferred form of embodiment of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that the right is reserved to any changes, alterations, and modifications which come fairly within the scope of the invention and which may be resorted to without departing from the spirit or sacrificing the advantages of the same. i

In said drawings, Figure 1 is a sectional view taken longitudinally through a portion of the crank-shaft and through a portion of sides 6.

a band-wheel I'nounted upon said shaft by the improved rig-flange. Fig. 2 is a sectional elevation taken on the line 2 2 in Fig. 1. Fig. 3 is a detail side view of the main flange. Fig. 4c is an end view of the same. Fig. 5 is a side view of the auxiliary flange. Fig. 6 is a sectional detail view taken on a plane indicated by the line 6 6 in Fig. 1.

Corresponding parts in the several figures are indicated by similar characters of reference.

The main flange 1 of the invention consists of a circular disk dished in the outer side thereof, as shown at 2, and provided at its edge with an inturned rim or portion 3, terminating in an annular flange 4. This disk also has a central or hub portion 5, which for the greater portion of its length is cylindrical in shape. The outer end of this hub portion, however, is squared, so as to present four flat The bore 7 of the hub is provided with a recess 8, extending throughout the length of the hub and constituting a key-seat. The auxiliaryflange 9 is, like the main flange 1, dished in its outer side, as shown at 10, and is provided at its periphery with an inturned rim 11, from which an annular flange 12 extends radially. The member 9 has a hub portion 13, provided with an opening 14, adapted to fit exactly upon the squared portion 6 of the cylindrical hub 5 of the main flange or member 1.

The radial flanges 4 and 12 are providedwith registering perforations 15 for the reception of clamping-bolts 17, having nuts 18. These clamping-bolts are to be extended through the body of the pulley or band-wheel 19, which is to be mounted upon a shaft, indicated in the drawings as a crank-shaft 20.

The operation and advantages of this invention will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. In machinery, such as well-drilling machinery and oil-rigs, it frequently becomes necessary to. knock down the machinery for transportation from one place to another, and it is always desirable that the pulleys, band-wheels, and the like he removed from their shafts not only in order and will be found extremely useful and convenient for the purposes indicated.

Having thus described the invention. what is claimed is In a device of the class described, a pair of disks having dished outer sides, inturned edges and annular flanges having apertures registering With each other, one of said disks being provided With a hub portion having a squared outer end and the other disk being provided With a central aperture exactly fitting the squared end of the hub, in combination With a band-Wheel or pulley fitted upon the hub of the main disk, and connectingbolts extending through apertures in the said Wheel and through registering apertures in the flanges of the disks.

In testimony that I claim the foregoing as my oWn I have hereto affixed my signature in the presence of two witnesses.

18 SAMUEL F. X FIELD.

mark

Witnesses:

J OHN W. GRIMM, Ross J. WETHERALD. 

